Description
CSI Computer Sources 150W AT Power Supply Small Form Factor w/ Cable Switch
A 150W AT form factor power supply manufactured by Computer Sources International. This unit delivers regulated power to vintage AT-based desktop computers via standard AT connectors and includes an external cable-mounted power switch.
Specifications & What's Included
- Model: CSI AT 150W Small Form Factor (MPN: CSI AT 150W)
- Power Output: 150W total
- Input: 115V–5A / 230V–2.5A, 50/60Hz
- Output Rails: +5V @ 15A, +12V @ 5.5A, -5V @ 0.5A, -12V @ 0.5A
- Connectors: AT main, 4-pin Molex, mini-Molex
- Dimensions: 6.5" L × 4.25" W × 2.83" H
- Includes cable harness with external cable switch
Applications
Designed for AT form factor desktop computers, particularly vintage IBM-compatible systems and legacy AT-based machines from the 1980s and early 1990s. AT power supplies were the standard in this era before being superseded by ATX form factors. This unit supports restoration and operation of period-correct systems requiring small form factor power delivery.
Please note: We may have multiple units of this item in stock. The unit you receive may vary slightly from the one shown in the photos. All units are functionally equivalent and inspected to the same standard.
This CSI Computer Sources International 150W AT Small Form Factor Power Supply has been tested at our facility and confirmed to be in working order. The unit presents in good used condition consistent with its age as a legacy PC component. The chassis shows minor surface wear and light scuffing typical of pulled surplus stock, but the body is intact with no cracks or damage. The cable harness is complete with AT main power connector, 4-pin Molex drive connectors, mini-Molex connector, and the cable-mounted power switch — all connections appear clean and undamaged. The IEC AC inlet and cooling fan are present and undamaged. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Computer Sources International (CSI) |
Model: |
AT Power Supply 150W Small Form Factor |
MPN: |
CSI AT 150W |
SKU: |
34714 |
Condition: |
Used – Inspected and Tested |
Form Factor: |
Small Form Factor (SFF) AT |
Power Output: |
150W |
Input Voltage: |
115V – 5A / 230V – 2.5A, 50/60Hz |
Output Voltages: |
+5V 15A, +12V 5.5A, -5V 0.5A, -12V 0.5A |
Power Good Signal: |
Orange wire Power Good signal present |
Switch Type: |
Cable Switch (external cable-mounted power switch) |
Connector Types: |
AT main connector, 4-pin Molex, mini-Molex |
Dimensions: |
6.5" L x 4.25" W x 2.83" H (approx) |
Compatible With 1: |
AT form factor desktop computers |
Compatible With 2: |
Vintage IBM-compatible AT PCs, legacy desktop systems |
Country of Manufacture: |
Taiwan |
Seller Notes: |
Includes attached cable harness and cable-mounted power switch |
Condition Notes: |
This CSI Computer Sources 150W AT small form factor power supply has been tested and confirmed in working order. Good used condition with minor age-related wear. Cable harness complete with AT main, Molex, and cable switch connectors intact. |
